from transformers import pipeline

class SemanticAnalyzer:
    def __init__(self):
        self.nlp = pipeline('zero-shot-classification')
        self.labels = ["访谈", "风景", "动作", "教学", "产品展示"]

    def analyze_clip(self, clip):
        # 音频转文本
        text = self._speech_to_text(clip.audio) 
        
        # 视频关键帧分析
        frames = self._extract_key_frames(clip)
        
        # 多模态分析
        return {
            'text_labels': self.nlp(text, self.labels),
            'visual_labels': self._analyze_frames(frames)
        }